275142020 has 24 divisors (see below), whose sum is σ = 580739544. Its totient is φ = 109496576.

The previous prime is 275142017. The next prime is 275142067. The reversal of 275142020 is 20241572.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 36192256 + 238949764 = 6016^2 + 15458^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30977 + ... + 38856.

It is an arithmetic number, because the mean of its divisors is an integer number (24197481).

Almost surely, 2^275142020 is an apocalyptic number.

275142020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275142020 is an abundant number, since it is smaller than the sum of its proper divisors (305597524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

275142020 is a wasteful number, since it uses less digits than its factorization.

275142020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70039 (or 70037 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 275142020 is about 16587.4054631820. The cubic root of 275142020 is about 650.4076496132.

Adding to 275142020 its reverse (20241572), we get a palindrome (295383592).

The spelling of 275142020 in words is "two hundred seventy-five million, one hundred forty-two thousand, twenty".